Apparently there is this app for mail and they make another one for docs.
GW Mail for iPhone, iPod touch, and iPad on the iTunes App Store:
Description GW Mail is a GroupWise email client for the iPhone. With this app you get a much better interface than Novell delivers by default through GroupWise WebAccess. This app gives you some of the enterprise features that you wouldn’t get with simple POP/IMAP – like access to your Frequent Contacts and GroupWise address book.